Isophthalic dihydrazide
- CAS NO.:2760-98-7
- Empirical Formula: C8H10N4O2
- Molecular Weight: 194.19
- MDL number: MFCD00025117
- EINECS: 220-425-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-06-12 09:43:52
What is Isophthalic dihydrazide?
Synthesis
Isophthalic dihydrazide is prepared by the reaction of Dimethyl isophthalate and Hydrazine hydrate. The specific synthesis steps are as follows:
A mixture of dimethyl ester of isophthalic acid (2.22 gm) and hydrazine hydrate (98percent, 2 cc) in methanol was refluxed for 5 hours and the reaction mixture was allowed to cool to room temperature. Then, the cooled reaction mixture was poured on to ice cold water. The dihydrazide of isophthalic acid thus obtained was filtered and recrystallized from ethanol. [1] Yield: (85percent), M.P=241℃, (Scheme1). 1HNMR (400 MHz, CDCL3, ppm): 9.81 (s, 2H, -CO-NH-), 8.20 (s 1H ), 7.8(d, 2H, J=7.6 Hz), 7.5 (t, 1H, 7.2 Hz), 4.5 (s, 4H).
Properties of Isophthalic dihydrazide
Melting point: | 224°C |
Density | 1.344±0.06 g/cm3(Predicted) |
vapor pressure | 0-0Pa at 20-25℃ |
storage temp. | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
form | Solid:particulate/powder |
pka | 11.87±0.10(Predicted) |
color | White to Almost white |
CAS DataBase Reference | 2760-98-7(CAS DataBase Reference) |
EPA Substance Registry System | Isophthalic acid dihydrazide (2760-98-7) |
Safety information for Isophthalic dihydrazide
Computed Descriptors for Isophthalic dihydrazide
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